The answer is 7x - 23
You first multiply 5 by what's in the parenthesis and when you do this you get 5x - 20 after that you combine like terms so 5x + 2x is 7x and -20 + (-3) is -23
Leaving you with the answer of 7x - 23
67.5 mph // 45/2 miles in 1/3 hour times 3 is 135/2 which is 67.5 mph
<h3>Answer: Choice B</h3>
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Explanation:
Using your calculator, you should find that
- sqrt(125) = 11.1803 approximately
- sqrt(196) = 14 exactly
- sqrt(207) = 14.387 approximately
- sqrt(220) = 14.832 approximately
Each approximate result has its decimal digits go on forever without any pattern. So we cannot write those values as a fraction of two integers. The decimal expansion must have some kind of pattern that repeats forever, so we could consider it rational.
Only choice B results in a whole number. The value 14 is the same as 14/1, showing it can be written as a fraction of two integers. Therefore choice B is rational.
<span>The answer is:
T : (x, y) (x + 4, y + 3)
</span>T⁻¹<span>: (x, y) (x - 4, y - 3)
</span><span>The basic principle is to find the inverse function of F, such that T*</span>T⁻¹ = T⁻¹ * T = I.
